145615380 has 96 divisors (see below), whose sum is σ = 430012800. Its totient is φ = 36761088.

The previous prime is 145615367. The next prime is 145615381. The reversal of 145615380 is 83516541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145615381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91431 + ... + 93009.

It is an arithmetic number, because the mean of its divisors is an integer number (4479300).

Almost surely, 2^145615380 is an apocalyptic number.

145615380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145615380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215006400).

145615380 is an abundant number, since it is smaller than the sum of its proper divisors (284397420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145615380 is a wasteful number, since it uses less digits than its factorization.

145615380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 145615380 is about 12067.1197889140. The cubic root of 145615380 is about 526.1009458946.

It can be divided in two parts, 1456 and 15380, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 145615380 in words is "one hundred forty-five million, six hundred fifteen thousand, three hundred eighty".